Vkinman 18-5228-1 Premium MagForce 9" Marine Spark Plug Wire Lead 8MM Replacement for Mercury 84-813715A1Replace Part Number:Replacement for Mercury 84-813715A1Easy to Install:The Glove Box Latch Catch Handle is easy to install without damaging any position or system of your engine.Dimension: The Spark Plug Wire is 9 Inches long and the diameter of Ignition Wire's Metallic Core is 8mm.Feature: The 18-5228-1 Premium MagForce 9" Marine Spark Plug Wire Lead is designed specifically for marine engines, it can withstand the harsh marine environment and provide reliable performance.Function:The Spark Plug Wire Lead adopts MagForce technology to make your engine run smoother and more efficiently, with fewer misfires and other issues.